Subcapsular line sign (intracapsular breast implant rupture)

Last revised by Andrew Murphy on 27 Sep 2021

The subcapsular line sign is a small localized leak from a silicone implant that leads to the formation of a thin layer of silicone between the implant shell and the fibrous capsule. It represents a minimally collapsed intracapsular breast implant rupture. It is best appreciated by MRI.

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